I highly doubt Kakuta is going straight into the first team, he needs time to adapt and he would only have 1 or 2 good games once in a while but would probably be a liability on the pitch due inexperience. Benayoun could be very useful utility wise, he is a hard worker who does not mind being used as a squad player. He is versatile and could be used as an attacking midfield, put at the tip of the diamond, as a winger or at central midfield - could give a versatile experience for the youngsters.